Frequencies for s3_1_c5_17 variable in hcris2552_10_2010 dataset :

        irf |
    s300001 |
01700 00500 |      Freq.     Percent        Cum.
------------+-----------------------------------
          9 |          1        0.04        0.04
         54 |          1        0.04        0.09
          . |      2,320       99.91      100.00
------------+-----------------------------------
      Total |      2,322      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018